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💧 kolerflo rs15-6 ss green 3/4 inch water recirculating pump for water heater system logo

💧 KOLERFLO RS15-6 SS Green 3/4 Inch Water Recirculating Pump for Water Heater System Review

5

·

Average

Revainrating 4 out of 5  
Rating 
3.8
🌊 Water Pumps, Parts & Accessories, 🚰 Rough Plumbing

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Description of 💧 KOLERFLO RS15-6 SS Green 3/4 Inch Water Recirculating Pump for Water Heater System

Rated power: 93/67/46 W. NPT 3/4 inch (19.05 mm) inlet/outlet. Voltage/Frequency: 110-120V, 60Hz. Max pressure: 145 psi (10 bar),the circulation pump with three-speed control. Flow: 36/29/20 LPM (9.5/7.66/5.28 GPM). Max head: 6/4.9/4 m (20/16/13 ft);Pump housing: Aluminum. Impeller: Corrosion-resistant, composite, PES. Shaft: 45 # steel. Bearing: Carbon axia. Easy installation, only need a wrench to connect the pump to the pipeline, saving you the cost of plumbers; Instant hot water, waiting for 2-3 minutes in the past, now it takes only 15 seconds to get hot water. Prevent pipes from freezing in winter, especially for cold winter areas. In addition, if your pipes pass through the floor, the floor will also become warm. The circulation water pump features high efficiency with low consumption. High temperature resistance, anti-fraying, high flow and leak-tightness. Super silent, environmental friendly,saving energy, running power, reducing the waste of cold water and waiting time, suitable for water scarce areas, such as desert areas. KOLERFLO circulation water pump RS15-6 Used in Suitable for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on.

Reviews

Global ratings 5
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Type of review

Revainrating 5 out of 5

Use caulking, not regular pipe and joint sealant, it will leak.

pump works great. I placed a pump on the end of my hot water return line and a pump on the cold water side of the water heater. Instant hot water everywhere. Insulated the pipes and increased the underground temperature by only 2 degrees. For installation, use 3/4 inch fittings with a gasket, like a water heater.

Pros
  • The best in its niche
Cons
  • volume

Revainrating 5 out of 5

So far, so good. - Rough installation

Installed under the sink for hot water circulation to provide instant hot water to the main bathtub and shower faucets. I connected it via a smart plug so I can turn it on and off with Alexa. I'm retired and don't have a set schedule, so I didn't want to spend extra money on a device with a built-in timer. Also, the remote smart plug app can be used to set a timer if needed. So far it works very well.

Pros
  • Cool product
Cons
  • Requires outlet

Revainrating 4 out of 5

Good pump - easy install, works great

Good product for the money - Use this pump on our water heater to circulate hot water around the house - all the faucets have hot water and we love it - Ease of installation - one thing we noticed when first installing was the smell from the hot water but it only lasted for about 2 days and after that it didn't - we thought it was caused by oil in the pump which got into the hot water after installation and dissipated over time. A good product! Before that I had a pump that cost three times as…

Pros
  • Good product for the price
Cons
  • Not sure

Revainrating 4 out of 5

Very quiet and stable but requires attention when priming.

We bought an RS15-6 (blue) to circulate water through a water heater for a home build hot tub. I needed something quiet, reliable, and also able to run at least 3 GPM and 8 PSI (about 18ft head). This was the minimum for the tank we used. I also need something we can set and forget (top up and just turn on when needed). The RS15-6 did a great job of all of this, but with one caveat. This is stated in the user manual, but it is very important that it is properly prepared. This pump is not…

Pros
  • Quality construction
Cons
  • Some imperfections

Revainrating 1 out of 5

Great for Power Water Pumps

I have this to circulate water from my water heater to remote appliances in my house for instant hot water. That works great. Other reviewers have reported issues with the pump due to being unable to stop leaks at the ports. Having a lot of plumbing experience, I decided I was smart enough to solve these problems. First you need to understand that the thread is a hose thread, not a pipe thread, so a direct pipe connection will not work. First I bought a hose threaded adapter thinking I'd…

Pros
  • Free for Educational Purposes
Cons
  • High Price